Exploitation will not show any signs. After the attacker will take control the code can have any effect.
Please let BitDefender disinfect your files.
Sorin Ciorceri, virus researcher
A visit to any compromised site is enough to get infected with this malicious script. It will test for several components having vulnerabilities, and will insert IFRAME tags that will point to attacker's other malicious scripts.
Vulnerabilities exploited by those scripts are:
(CVE-2007-5601) RealPlayer IERPCtl.IERPCtl.1
(CVE-2007-5722) GLCHAT.GLChatCtrl.1 ActiveX
All those malicious scripts will download and execute trojans on your computer.